\begin{tikzpicture}[>=Stealth,
    every node/.style={fill=white, inner sep=1pt},
    scale=0.3,
]
    \pgfmathsetmacro{\R}{7.8}
    \pgfmathsetmacro{\r}{1.1}
    \pgfmathsetmacro{\d}{4}

    \draw [ultra thick, pattern={mylines[angle=45, distance={5pt}]}]
        (0, 0) circle (\R);
    \draw [ultra thick, fill=white] (0,  \d) circle (\r);
    \draw [ultra thick, fill=white] (0, -\d) circle (\r);
    \draw [ultra thick, fill=white] (\d,  0) circle (\r);
    \draw [ultra thick, fill=white] (-\d, 0) circle (\r);
\end{tikzpicture}

